Renaming datafiles in control files with database mounted but not open

Question

Hi,
I moved a database (physical files) from one server to another. I need to modify the contents of the control files since the directory structure of the servers are not the same (and I can't change that).
I know I can use ALTER DATABASE BACKUP CONTROLFILE TO TRACE to produce a script that I can than modify and run with the instance started, database mounted but not open, and that will recreate the control files. I don't want to do that.
I was also told I can modify the datafile entries in the control files by starting the instance, mounting but not opening the database. Then I can issue the (this is the part I need help with) ALTER DATABASE RENAME FILE <file1> to <file2>. When I tried this it complains that <file1> is not found. Obviously the command I used is not the right one,,, what is the right command for what I want to do.
Thanks,
Gabriel

Answer 1

Move all datafiles from one directory to an other without recreate controlfile :
SYS@DEMO102> select file_name from dba_data_files
  2  union
  3  select member from v$logfile
  4  union
  5  select file_name from dba_temp_files
  6  union
  7  select name from v$controlfile;
FILE_NAME
E:\ORACLE\ORADATA\DEMO102C\CONTROL01.CTL
E:\ORACLE\ORADATA\DEMO102C\CONTROL02.CTL
E:\ORACLE\ORADATA\DEMO102C\CONTROL03.CTL
E:\ORACLE\ORADATA\DEMO102C\EXAMPLE01.DBF
E:\ORACLE\ORADATA\DEMO102C\REDO01.LOG
E:\ORACLE\ORADATA\DEMO102C\REDO02.LOG
E:\ORACLE\ORADATA\DEMO102C\REDO03.LOG
E:\ORACLE\ORADATA\DEMO102C\SYSAUX01.DBF
E:\ORACLE\ORADATA\DEMO102C\SYSTEM\SYSTEM01.DBF
E:\ORACLE\ORADATA\DEMO102C\TBS102_1.DBF
E:\ORACLE\ORADATA\DEMO102C\TBS102_2.DBF
E:\ORACLE\ORADATA\DEMO102C\TEMP01.DBF
E:\ORACLE\ORADATA\DEMO102C\UNDOTBS01.DBF
E:\ORACLE\ORADATA\DEMO102C\USERS01.DBF
14 rows selected.
SYS@DEMO102> create pfile='E:\oracle\admin\DEMO102\pfile\pfile102.ora' from spfile;
File created.
SYS@DEMO102> shutdown immediate
Database closed.
Database dismounted.
ORACLE instance shut down.Here, I move all datafiles mentionned above, and modify my pfile for new controlfile directory. Then :
SYS@DEMO102> startup pfile=E:\oracle\admin\DEMO102\pfile\pfile102.ora
ORACLE instance started.
Total System Global Area  272629760 bytes
Fixed Size                  1288940 bytes
Variable Size             163579156 bytes
Database Buffers          100663296 bytes
Redo Buffers                7098368 bytes
Database mounted. --Note that we are in mount state
ORA-01157: cannot identify/lock data file 1 - see DBWR trace file
ORA-01110: data file 1: 'E:\ORACLE\ORADATA\DEMO102C\SYSTEM\SYSTEM01.DBF'
SYS@DEMO102> alter database rename file 'E:\ORACLE\ORADATA\DEMO102C\USERS01.DBF' to 'E:\ORACLE\ORADATA\demo102\USERS01.DBF';
Database altered.
SYS@DEMO102> alter database rename file 'E:\ORACLE\ORADATA\DEMO102C\SYSAUX01.DBF' to 'E:\ORACLE\ORADATA\demo102\SYSAUX01.DBF';
Database altered.
SYS@DEMO102> alter database rename file 'E:\ORACLE\ORADATA\DEMO102C\UNDOTBS01.DBF' to 'E:\ORACLE\ORADATA\demo102\UNDOTBS01.DBF';
Database altered.
SYS@DEMO102> alter database rename file 'E:\ORACLE\ORADATA\DEMO102C\SYSTEM\SYSTEM01.DBF' to 'E:\ORACLE\ORADATA\demo102\SYSTEM\SYSTEM01.DBF';
Database altered.
SYS@DEMO102> alter database rename file 'E:\ORACLE\ORADATA\DEMO102C\EXAMPLE01.DBF' to 'E:\ORACLE\ORADATA\demo102\EXAMPLE01.DBF';
Database altered.
SYS@DEMO102> alter database rename file 'E:\ORACLE\ORADATA\DEMO102C\TBS102_1.DBF' to 'E:\ORACLE\ORADATA\demo102\TBS102_1.DBF';
Database altered.
SYS@DEMO102> alter database rename file 'E:\ORACLE\ORADATA\DEMO102C\TBS102_2.DBF' to 'E:\ORACLE\ORADATA\demo102\TBS102_2.DBF';
Database altered.
SYS@DEMO102> alter database rename file 'E:\ORACLE\ORADATA\DEMO102C\REDO01.LOG' to 'E:\ORACLE\ORADATA\demo102\REDO01.LOG';
Database altered.
SYS@DEMO102> alter database rename file 'E:\ORACLE\ORADATA\DEMO102C\REDO02.LOG' to 'E:\ORACLE\ORADATA\demo102\REDO02.LOG';
Database altered.
SYS@DEMO102> alter database rename file 'E:\ORACLE\ORADATA\DEMO102C\REDO03.LOG' to 'E:\ORACLE\ORADATA\demo102\REDO03.LOG';
Database altered.
SYS@DEMO102> alter database rename file 'E:\ORACLE\ORADATA\DEMO102C\TEMP01.DBF' to 'E:\ORACLE\ORADATA\demo102\TEMP01.DBF';
Database altered.
SYS@DEMO102> alter database open;
Database altered.
SYS@DEMO102> create spfile from pfile='E:\oracle\admin\DEMO102\pfile\pfile102.ora';
File created.
SYS@DEMO102> shutdown immediate
Database closed.
Database dismounted.
ORACLE instance shut down.
SYS@DEMO102> startup
ORACLE instance started.
Total System Global Area  272629760 bytes
Fixed Size                  1288940 bytes
Variable Size             163579156 bytes
Database Buffers          100663296 bytes
Redo Buffers                7098368 bytes
Database mounted.
Database opened.
SYS@DEMO102> select file_name from dba_data_files
  2  union
  3  select member from v$logfile
  4  union
  5  select file_name from dba_temp_files
  6  union
  7  select name from v$controlfile;
FILE_NAME
E:\ORACLE\ORADATA\DEMO102\CONTROL01.CTL
E:\ORACLE\ORADATA\DEMO102\CONTROL02.CTL
E:\ORACLE\ORADATA\DEMO102\CONTROL03.CTL
E:\ORACLE\ORADATA\DEMO102\EXAMPLE01.DBF
E:\ORACLE\ORADATA\DEMO102\REDO01.LOG
E:\ORACLE\ORADATA\DEMO102\REDO02.LOG
E:\ORACLE\ORADATA\DEMO102\REDO03.LOG
E:\ORACLE\ORADATA\DEMO102\SYSAUX01.DBF
E:\ORACLE\ORADATA\DEMO102\SYSTEM\SYSTEM01.DBF
E:\ORACLE\ORADATA\DEMO102\TBS102_1.DBF
E:\ORACLE\ORADATA\DEMO102\TBS102_2.DBF
E:\ORACLE\ORADATA\DEMO102\TEMP01.DBF
E:\ORACLE\ORADATA\DEMO102\UNDOTBS01.DBF
E:\ORACLE\ORADATA\DEMO102\USERS01.DBF
14 rows selected.
SYS@DEMO102> Nicolas.